I purchased the clips online at HangUps Unlimited
Here is the site for the hanger clips
http://www.hangups.com/MerchandiserStrips.html
and the style MSH 12
The ziplock bags I purchase at the flea market, since they are cheaper than at other stores.
I find the folders make it easier to see the fabrics. I still need to organize based on colors. The image I sent is a small collection of fabrics. I also use the crates I purchased from JoAnn's to store the folders of fabrics. This allows them to be a bit more portable than a book case. Since I do not have lots of room in my sewing room. Need more space (LOL).